JIS B 6402 PDF

Read 3 answers by scientists with 1 recommendation from their colleagues to the question asked by Daniel Martinez Krahmer on Dec 17, JIS B Mechanical power presses — Testing of the accuracy (FOREIGN STANDARD. Find the most up-to-date version of JIS B at Engineering

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Emergency stopwatch would be provided in the control panel. The allowable performance for the former is 1. Frame is stretched by three times This three time figure shows the maximum applied load of the press. Using the allowable capacity is disputable from the point of fair business transaction.

Our company does not employ this method because in case of hardened spring adjustment of the torque limiter by mistake, machine may always running with overload and finally machine may brake. Dual Sensing Solenoid valve. As explained earlier, the press can compress a test piece with nominal capacity, however, it is absolutely impossible to do with the allowable capacity.

Brake motor drives the worn shaft and wheel made of P. Since the screw press has no mechanical lower-dead-point, the machine never stops caused from overload stick like the crank press machine. The load that can be allowable becomes reducing when it becomes far from the center.

JIS-B | Mechanical power presses — Testing of the accuracy | Document Center, Inc.

The flywheel revolution is sequentially controlled in a servomotor direct driven system without clutch transmission. We don’t use the torque limiter approach attached to the flywheel discharging overload energy. Here a problem occurs how much the allowable applied load of a jjis being set witch coming from rigidity design of machine. Web Design City Dubai.


It is just a matter of revolution energy usage whether it is used for work piece compression or the frame deformation. It becomes quite expensive machine though we could manufacture it.

Brake is automatically applied when the clutch is released. Rotary 3 position Cam Limit Switch. This prevents any damage to the tool and to the press. The frames are stress relieved before machining.

Basically, eccentric load out of the screw diameter should be avoided. The load gauge simply displays the result of how many kN loaded to the frame. Standard bolster with T-slots.


The required speed is previously set on touch panel or by setting dial. If the preset value is small, the slide is clutched off right after acceleration and it descends evenly with inertia. Suitable centralized Motorised Lubrication Pump.

The load should be placed on the center fundamentally. Evaluation of the screw press capacity is ji with testing a work piece in cold compression.

The slide speed adjustment takes the method that controls to have same speed every cycle based on encoder signal detected the slide descending speed. The capacity of screw press should be used with the nominal capacity. Acceleration and speed reduction are combined automatically to apply power with the Minimum time for one cycle. Forming energy is completely same with flywheel energy. Machine life is drastically shortened if the press is used under three more times of nominal capacity maximum capacity repeatedly usually, the screw and the frame get damage.


Crank Shaft The Crank shaft would be of forged jie normalized medium carbon steel to ensure toughness and shock resistance. There are always risks that the load surpasses the allowable load. Squirrel Cage Electric Motor. That means that there exists a risk that the machine is used under overload situation without knowing.

This accurately machined steel fabricated box type slide runs in extra long gibs fitted with PB liners, eliminating any possibility of tilting and maintains the parallelism of face even at off center loading.

When you set up two strain gauges at each side of the frame, the load on one side frame equals to a half of the load becomes setting value and shown as certain kN in RH and LH independently, plus total kN in the display. In the screw press, generally, the forming energy is adjusted with slide speed control just before stamping.

Pneumatic balancer for slide 2 nos. Even though frame is the same, larger amount of flywheel energy is put on to be a large performance press for hot forging and smaller amount of flywheel energy is put on to be a small performance press for cold forging.